Giftwhale - Giftwhale allows you to create personalised wish lists online.
idealo - Idealo is a free to use mobile application that helps you to find products, compare price and make an informed decision.
Wantt - Create & share wish lists for free
Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything
Swaver - Collect gift ideas for your loved ones and share your own wishlists. Add items from any online store. The perfect list maker for Christmas and other events!
Groupon - Each day Groupon offers a deal through local vendors in your city.